package com.qfjy.homework.linzhengchao;

import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.LinkedList;

/**
 * @author:lzc date:2022/6/30/0030 14:28
 * @version:1.0
 */
public class NewBranch_lzc {

    public static void main(String[] args) throws InterruptedException {
        System.out.println("新分支--林正超"+new Date());
        ArrayList<Object> objects = new ArrayList<>();
        System.out.println("长度1："+objects.size());
        Thread.sleep(1000);
        objects.add(0,"A");
        System.out.println("长度2："+objects.size());

        LinkedList<Object> objects1 = new LinkedList<>();
        System.out.println("objects1长度："+objects1.size());

        HashMap<Object, Object> objectObjectHashMap = new HashMap<>();
    }

}
